Crystal structure of Estrogen Related Receptor-3 (ERR-gamma) ligand binding domain with DN200434

Experimental Data Snapshot

  • Resolution: 2.50 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 

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This is version 1.3 of the entry. See complete history


A Novel Orally Active Inverse Agonist of Estrogen-related Receptor Gamma (ERR gamma ), DN200434, A Booster of NIS in Anaplastic Thyroid Cancer.

Singh, T.D.Song, J.Kim, J.Chin, J.Ji, H.D.Lee, J.E.Lee, S.B.Yoon, H.Yu, J.H.Kim, S.K.Yoon, G.S.Hwang, H.Lee, H.W.Oh, J.M.Lee, S.W.Lee, J.Choi, H.S.Na, S.Y.Choi, W.I.Park, Y.J.Song, Y.S.Kim, Y.A.Lee, I.K.Cho, S.J.Jeon, Y.H.

(2019) Clin Cancer Res 25: 5069-5081

  • DOI: https://doi.org/10.1158/1078-0432.CCR-18-3007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    New strategies to restore sodium iodide symporter (NIS) expression and function in radioiodine therapy-refractive anaplastic thyroid cancers (ATCs) are urgently required. Recently, we reported the regulatory role of estrogen-related receptor gamma (ERRγ) in ATC cell NIS function. Herein, we identified DN200434 as a highly potent (functional IC 50 = 0.006 μmol/L), selective, and orally available ERRγ inverse agonist for NIS enhancement in ATC. We sought to identify better ERRγ-targeting ligands and explored the crystal structure of ERRγ in complex with DN200434. After treating ATC cells with DN200434, the change in iodide-handling gene expression, as well as radioiodine avidity was examined. ATC tumor-bearing mice were orally administered with DN200434, followed by 124 I-positron emission tomography/CT (PET/CT). For radioiodine therapy, ATC tumor-bearing mice treated with DN200434 were administered 131 I (beta ray-emitting therapeutic radioiodine) and then bioluminescent imaging was performed to monitor the therapeutic effects. Histologic analysis was performed to evaluate ERRγ expression status in normal tissue and ATC tissue, respectively. DN200434-ERRγ complex crystallographic studies revealed that DN200434 binds to key ERRγ binding pocket residues through four-way interactions. DN200434 effectively upregulated iodide-handling genes and restored radioiodine avidity in ATC tumor lesions, as confirmed by 124 I-PET/CT. DN200434 enhanced ATC tumor radioiodine therapy susceptibility, markedly inhibiting tumor growth. Histologic findings of patients with ATC showed higher ERRγ expression in tumors than in normal tissue, supporting ERRγ as a therapeutic target for ATC. DN200434 shows potential clinical applicability for diagnosis and treatment of ATC or other poorly differentiated thyroid cancers.

  • Organizational Affiliation

    Department of Medical Oncology Laboratory, All India Institute of Medical Sciences (AIIMS), New Delhi, India.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Estrogen-related receptor gamma
A, B, C
238Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P62508 (Homo sapiens)
Explore P62508 
Go to UniProtKB:  P62508
PHAROS:  P62508
GTEx:  ENSG00000196482 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62508
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 2.50 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.886α = 90
b = 79.828β = 107.81
c = 106.714γ = 90
Software Package:
Software NamePurpose
HKL-2000data processing
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

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Ligand Structure Quality Assessment 

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
the korea health industry development instituteKorea, Republic OfHI16C1501

Revision History  (Full details and data files)

  • Version 1.0: 2018-12-26
    Type: Initial release
  • Version 1.1: 2019-05-01
    Changes: Data collection, Database references
  • Version 1.2: 2019-08-28
    Changes: Data collection, Database references
  • Version 1.3: 2023-11-22
    Changes: Data collection, Database references, Refinement description